I can see the 'wet and let bloom' idea being helpful for a pourover, where the pour is very controlled. But with my press pot, the hot water is poured in in a deluge, so all the coffee is perfectly saturated already.
So complete saturation isn't an issue, but it makes me wonder if allowing the coffee to bloom before hitting it with the rest of the water may make a difference.
Also, as for the stir at the beginning... it seems to me when the coffee is stirred, it causes the particles to sink, taking them out of the suspension. I like to pour vigorously (eliminating the need for a stir), letting some of the particles form a crust and fall out of suspension on their own, and then stir or swirl after about a minute, re-suspending the particles.
That is the best and only way to brew in a press pot!!!!!